Prepare for the NCCER Electrical Level 2 Control Systems and Fundamental Concepts exam. Utilize flashcards and multiple choice questions with hints and explanations. Ensure success on your exam!

Multiple Choice

In a series circuit, which statement is true?

In a series circuit, there is only one path for current, so the same current flows through every component. The voltages across the components add up to the total source voltage because the loop’s voltage must balance to the supply (Kirchhoff’s voltage law). Each component’s voltage is determined by V = I × R, so the voltages can be different unless the resistances are the same. Therefore, the true statement is that the current is the same through all components and the voltages add together to make the total.

In a series circuit, there is only one path for current, so the same current flows through every component. The voltages across the components add up to the total source voltage because the loop’s voltage must balance to the supply (Kirchhoff’s voltage law). Each component’s voltage is determined by V = I × R, so the voltages can be different unless the resistances are the same. Therefore, the true statement is that the current is the same through all components and the voltages add together to make the total.